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Cylinder Head: Installation

  1. Clean gasket surfaces, bolt threads and bolt holes. If using steel head gasket, thinly coat both sides of gasket with sealant. DO NOT apply sealant to composition (steel/asbestos) head gaskets. Position head gasket on cylinder block. Ensure all holes align. Coat head bolt threads with GM Sealant (1052080).
  2. Install cylinder head with bolts finger-tight. Tighten head bolts in sequence to specification. See Fig 1. See TORQUE SPECIFICATIONS  at end of article. Lubricate valve tip, rocker arm pivot and push rod socket with Molykote.
  3. To complete installation, reverse removal procedure. Adjust valves. See VALVE CLEARANCE ADJUSTMENT  under ADJUSTMENTS.
Fig 1: Cylinder Head Bolt Tightening Sequence
G200252Courtesy of GENERAL MOTORS CORP.
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